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题型:阅读理解 题类:常考题 难易度:普通

江西省赣州市2017-2018学年高一下学期英语期末考试试卷

阅读理解

    Think of a seed buried in a pot. It's dark down there in the potting soil. There's no light, no sunshine. So how does it know which way is up and which way is down? It does know. Seeds send shoots up toward the sky, and roots the other way. Darkness doesn't confuse them. Somehow, they get it right.

    More surprisingly, if you turn a seedling (秧苗) or a whole bunch of seedlings upside down, as Thomas Andrew Knight of the Royal Society did around 200 years ago, the tips and roots of the plant will sense, “Hey, I'm upside down. Look! I. will turn my way to the right direction and do a U-turn.”

    How do they know? According to botanist Daniel Chamovitz, Thomas Knight about 200 years ago guessed that plants must sense gravity. Knight proved it with a crazy experiment involving a spinning plate.

    He attached a bunch of plant seedlings onto a disc. The plate was then turned by a water wheel powered by a local stream at a speed of 150 revolutions (旋转) per minute for several days.

    If you have been at an amusement park in a spinning teacup, you know that because of centrifugal force (离心力) you get pushed away from the center of the spinning object toward the outside.

    Knight wondered, would the plants respond to the centrifugal pull of gravity and point their roots to the outside of the spinning plate? When he looked, that's what they'd done. Every plant on the disc had responded to the pull of gravity, and pointed its roots to the outside. The roots pointed out, and the shoots pointed in. So Thomas Knight proved that plants can and do sense the pull.

(1)、How does the author write about the young seedling in Paragraph 2?
A、By describing vividly. B、By giving examples. C、By telling stones. D、By asking questions.
(2)、What determines the direction that the plant choose?
A、Soil. B、Sunshine. C、Darkness. D、Gravity.
(3)、What did Knight's experiment prove?
A、Plants have their own desires. B、Plants can feel the pull. C、Speed influences plants' growing. D、Plants can grow quickly by doing a U-turn.
(4)、Where can this passage most probably be found?
A、In a book review. B、In a lifestyle magazine. C、In a scientific report. D、In an official document.
举一反三
阅读理解

    Anxiety has now surpassed depression as the most common mental health disease among college students, though depression, too, is on the rise. More than half of students visiting campus clinics cite anxiety as a health concern, according to a recent study of more than 100,000 students nationwide by the Center for Collegiate Mental Health at Penn State. Nearly one in six college students has been diagnosed with or treated for anxiety within the last 12 months, according to the annual national survey by the American College Health Association.

    The causes range widely, experts say, from mounting academic pressure at earlier ages to overprotective parents to engagement with social media. Anxiety has always played a role in the development of a student's life, but now more students experience anxiety so acute that they are seeking professional help. Like many college clinics, the Center for Counseling and Psychological Services at the University of Central Florida (UCF)— one of the country's largest and fastest-growing universities, has seen sharp increases in the number of clients: 15.2 percent over last year alone.

    Anxiety has become characteristic of the current generation of college students, said Dan Jones, the director of Counseling and Psychological Services at Appalachian State University in Boone, N. C. Because of increasingly pressures during high school, he and other experts say, students arrive at college preloaded with stress. Accustomed to extreme parental oversight, many seem unable to govern themselves. And with parents so accessible, students have had less incentive to develop life skills. “They can't tolerate discomfort or having to struggle,” Dr Jones said.

    More often, anxiety is mild and temporary, the indication of a student under the control of a normal developmental issue-learning time management, for example, or how to handle rejection from a sorority. Mild anxiety is often treatable with early, modest interventions. But to care for rising numbers of severely troubled students, many counseling centers have moved to triage protocols (分诊措施). That means that students with less urgent needs may wait several weeks for first appointments.

    Like many college counseling centers, UCF has designed a variety of daily workshops and therapy groups that implicitly and explicitly address anxiety, depression and their triggers. Next fall the center will test a new app for treating anxiety with a seven-module cognitive behavioral program, accessible through a student's phone and augmented with brief videoconferences with a therapist. It also offers semester-long, 90-minute weekly therapy groups, such as “Keeping Calm and in Control”, “Mindfulness for Depression” and “Building Social Confidence” -for students struggling with social anxiety.

阅读理解

    If you like texting and are trying to lose weight, a new study found that using texting to track(追踪) diet and exercise habits may help you lose weight.

    Previous research has shown that keeping food and exercise diaries improves the likelihood of success when you are trying to lose weight. Using a computer or a pen and paper to record information, however, can be a burden and cause some people to give up.

    Duke University researchers said using text messages to track eating and exercise habits can save time, and increase the chances that people will stick with their weight-loss rules.

    The study included 26 obese women with an average age of 38. The women used daily texting as part of their weight-loss program. The text messages focused on tracking personalized goals, such as avoiding sugary drinks or walking 10,000 steps a day. Messages also provided brief feedback (回复) and tips.

    Every morning, the women received a text from an automated(自动的)system that said, "Please text yesterday's personal information of steps you walked and how many sugary drinks you had." Based on the women's responses to the text message, the system sent another text with personalized feedback and tips.

    After six months, the women who used daily texting lost an average of nearly 3 pounds, while another group of women who used traditional methods to keep food and exercise diaries gained an average of 2.5 pounds, according to the study, which was published in the Journal of Medical Internet Research.

    "Text messaging has become popular and may be an effective method to simplify tracking of diet and exercise behavior," Dori Steinberg, who was responsible for this research, said.

    Steinberg said, "Text messaging offers several advantages compared to other self-monitoring methods. Unlike web-based diet and exercise diaries, data in a text message can be entered quickly on nearly all cellphone platforms so it is very convenient to receive feedback. Besides, because of the limited number of words used in text messages, it saves time."

阅读理解

    Claude Monet, Pablo Picasso and Leonardo da Vinci ... the art world has never lacked talent. And now, a new painter is ready to join the list although this one isn't even human.

    Next month, auction house Christie's Prints and Multiples will make history by offering the first piece of art created by artificial intelligence (AI) for sale. The painting is a portrait of a man called Edmond De Bela- my, and is expected to be sold for up to $10,000.

    The work, which features a man with a mysterious look on his face, was created by software developed by the French art group Obvious. Laugero-Lasserre, an art collector, called the work "grotesque and amazing at the same time". This isn't the first example of Al-produced artwork, as AI has already been used to write poems and compose .songs. However, many people doubt whether it should be called art at all.

According to Russian writer Leo Tolstroy (1828 -1910), art is about creating emotion (情感). It's "a means of …joining people together in the same feelings' he once said.

So, if the emotion behind art is what makes it, the ability to create and use tools is what makes human Icings different from other species. And as a tool itself, the AI technology used to create the portrait is the result of a lot of effort made by several designers. Together, they "fed" the AI a huge collection of paintings from the 14th to the 18th centuries, until it was able to work out how to make similar paintings of its own.

    The introduction of AI art could be the beginning of a new artistic movement. However, not everyone is ready to welcome these high-tech artists just yet.

    "The human mind is what's behind the AI technology. And the human mind is not a cold, hard fact," said Oscar Schwartz, a professor of AI. "Rather, it in something that's created with our opinions and something that changes over

阅读理解

    After disappearing for over 19 years, measles (麻疹) is making a comeback in America. Since January 2019, the disease has infected more than 700 people, mostly small children, and the number seems to be increasing daily.

    Measles is an infectious disease that typically begins with a high fever, cough, runny nose, and red, watery eyes. Many people also lose their appetites and feel sleepy. About three to four days after the symptoms start, the person breaks out into a rash (皮疹) that begins on the face at the hairline and then spreads to the neck and the rest of the body.

    In healthy people, the recovery, which takes between two to three weeks, starts soon after the rash begins. However, for about 40 percent of patients — mainly kids under the age of five or older adults — the disease often leads to pneumonia (肺炎), which, if left untreated, could result in death.

    The recent outbreak is thought to have been caused by travelers picking up the virus in a country where the disease is still existing and exposing it to an unvaccinated (未接种的) community in the US. In New York, it was carried back by someone who had recently visited Israel, which is currently undergoing a significant measles, while in Washington, "patient zero" was infected by a type that is currently circulating in Europe.

    To limit the spread of the disease before it gets out of hand, US health officials are attempting to educate communities with high rates of unvaccinated children. They are also urging adults to consult with their physicians and get injected if considered necessary by the doctor.

    Hopefully, health officials worldwide will be able to convince parents that vaccinating their children will protect, not harm, them.

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